Cottonwood Hot Springs Inn & Spa - Buena Vista

Location: 18999 County Road 306 (five miles outside of town)
Why Go There? Five stone lined hot springs gravity fed soaking pools (swim suits required), dry sauna in natural setting are the draw for simple lodging options, including several inn rooms (two levels, rooms have verandas), dorm rooms/shared bathrooms, cabins, and limited tent and RV spaces; no air conditioners, televisions, wifi in rooms. Day use fee option available, under 16 not allowed in pools after dark.
More Information: Cottonwood Hot Springs

Simple Lodge & Hostel - Salida

Location: 224 East First Street
Why Go There?  Features dorm bunk beds, private rooms, shared bathrooms in heart of historic town; linens are available to rent; Private rooms include linens; communal kitchen, living room, dining room.
More Information: Facebook

Additional Resources

Merrifield Homestead Cabins & Hotsprings - Buena Vista
Rustic cabins, private hot springs

Antero Hot Springs - Nathrop
Offers three rustic cabins along a river with private hot springs soaking pools

Deer Valley Ranch - Nathrop
10 room lodge, several cabins, two hot springs fed outdoor swimming pools, hot tubs; coffee and ice cream shop, horseback riding, other activities; 16825 County Road 162 (Christian based, family oriented)

Mount Princeton Hot Springs Resort - Nathrop
Multiple hot spring options, lodging options, resort activities, day rates (senior discount)

Dakota Hot Springs - Penrose
Camping, use of bathhouse open year round; clothing optional (Tuesdays bathing suit required)